[Serusers] append_hf, append_urihf (append_furihf)

[Juha Heinanen]

Greg Fausak writes:

 > I was going to hack a append_urihf() into a append_furihf() to accomplish
 > the task...can I do this with an exec_dset or something else?

a more general purpose solution would be to load from uri into an avp
and then include that avp value into appended hf.  perhaps there already
exists a way to do so, i just have not needed it yet.

-- juha